The same strange keyboard behavior here, after upgrading libx11-6 problem is gone. (Thanks Julien, you have saved my day.)
(Anyway I wonder why upgrading xserver-xorg doesn't explicitly upgrade libx11-6, too.) -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org